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Journal ArticleDOI

Potential Use of FTIR-ATR Spectroscopic Method for Determination of Virgin Coconut Oil and Extra Virgin Olive Oil in Ternary Mixture Systems

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TLDR
In this article, the feasibility of Fourier transform infrared (FTIR) spectroscopy combined with multivariate calibrations of partial least square (PLS) and principle component regression (PCR) for analysis of virgin coconut oil (VCO) in the ternary mixture with palm oil (PO) and olive oil, and for extra virgin olive oil (EVOO) mixed with soybean oil (SO) and corn oil (CO).
Abstract
The aim of this study was to investigate the feasibility of Fourier-transform infrared (FTIR) spectroscopy combined with multivariate calibrations of partial least square (PLS) and principle component regression (PCR) for analysis of virgin coconut oil (VCO) in the ternary mixture with palm oil (PO) and olive oil, and for analysis of extra virgin olive oil (EVOO) mixed with soybean oil (SO) and corn oil (CO). The spectra of individual oils and their blends with certain concentrations were scanned using horizontal attenuated total reflectance accessory at mid-infrared region of 4,000–650 cm−1. The optimal frequency regions selected for calibration models were based on its ability to give the highest values of coefficient of determination (R 2) and the lowest values of root mean standard error of calibration (RMSEC). PLS was slightly better for quantitative analysis of VCO and EVOO compared with PCR. VCO in ternary mixtures is successfully determined at frequency region of 1,200–1,000 using second derivative FTIR spectra with R 2 and RMSEC values of 0.999 and 0.200, respectively. Meanwhile, EVOO is best determined at 1,200–1,000 using first derivative FTIR spectra with R 2 and RMSEC values of 0.999 and 0.975, respectively. The results showed that FTIR spectroscopy offers accurate and reliable technique for quantitative analysis of VCO and EVOO in ternary systems. In addition, the developed method can be used for the monitoring of VCO and EVOO adulteration with cheaper oils like PO in VCO as well as SO and CO in EVOO.

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Citations
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Journal ArticleDOI

Potential and limitations of non-targeted fingerprinting for authentication of food in official control

TL;DR: A current overview of the applicability of the non-targeted observation of abnormalities in various foods covering a broad variety of analytical methods using classic spectroscopic as well as spectrometric analytical techniques on the basis of examples of the three most investigated food matrices are highlighted.
Journal ArticleDOI

Review of validation and reporting of non-targeted fingerprinting approaches for food authentication

TL;DR: Food fingerprinting approaches are expected to become a very potent tool in authentication processes aiming at a comprehensive characterization of complex food matrices, and critical steps of the fingerprinting workflow were explored to develop a generic scheme for multivariate model validation.
Journal ArticleDOI

FTIR Spectroscopy and PLS-DA Classification and Prediction of Four Commercial Grade Virgin Olive Oils from Morocco

TL;DR: In this article, Fourier transform infrared (FTIR) coupled with chemometrics was used to classify and predict the quality of four commercial grade virgin olive oils (VOO).
Journal ArticleDOI

Determination of fatty acid content in meat and meat products: The FTIR-ATR approach.

TL;DR: The aim of the study was to investigate the feasibility of Fourier Transformed Infrared Spectroscopy on Attenuated Total Reflectance (ATR) in the determination of the fatty acid content in meat and meat products and the Multivariate calibrations were developed and proposed.
Journal ArticleDOI

Infrared spectroscopy for quantitative analysis and oil parameters of olive oil and virgin coconut oil: A review

TL;DR: In this paper, the use of infrared spectroscopy combined with chemometrics (multivariate analysis) for quantitative analysis and determination of oil parameters of virgin coconut oil and extra virgin olive oil is discussed.
References
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Journal ArticleDOI

Partial least-squares methods for spectral analyses. 1. Relation to other quantitative calibration methods and the extraction of qualitative information

TL;DR: Partial least squares (PLS) as discussed by the authors is one of the most popular spectral analysis methods for spectral analysis, which is composed of a series of simpllfled classical least-squares (CLS) and ILS steps.
Reference EntryDOI

Partial Least Squares

Herman Wold

Codex standard for named vegetable oils

Codex Stan
TL;DR: The Appendix to this Standard is intended for voluntary application by commercial partners and not for application by governments.
Journal ArticleDOI

Infrared spectroscopy in the study of edible oils and fats

TL;DR: In this paper, the use of infrared spectroscopy in the study of fats and oils is reviewed, and the usefulness of this technique to characterise oils and fats and to detect adulterations is reviewed.
Journal ArticleDOI

Fourier transform infrared (FTIR) spectroscopy for analysis of extra virgin olive oil adulterated with palm oil

TL;DR: In this paper, Fourier transform infrared (FTIR) spectroscopy has been used for analysis of extra virgin olive oil (EVOO) adulterated with palm oil (PO), and two multivariate calibrations, namely partial least square (PLS) and principle component regression (PCR), were optimized for constructing the calibration models, either for normal spectra or its first and second derivatives.
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